High Performance Material: Bicycle disc brake pad made of resin and copper fiber increases the durability and braking comfort of the rear disc brake blades and effectively reduces noise. Extensive Compatibility: See (including but not limited to) BOL I BB8. Some domestic disc brake blades and external dimensions can be installed and used. The listed bicycle models include, but are not limited to, the shape and dimensions of the original brake pads, which you can check before purchasing. Safe and Reliable: Designed for dry and wet conditions, provides better cooling, improved cooling and wear resistance, wear resistance of brake blades, cooling, high temperature, effective brake discs. Even on a bad road or in bad weather conditions, there is still a powerful parking function that ensures you ride safely. Excellent Braking Performance: High quality, powerful braking force, quiet and noiseless effects. With noise and rotor protection, a raw resin blend on the steel backing plate, brake blades are perfect for bicycles, and you should choose wisely. The smooth braking provides predictable and progressive power, giving you comfortable braking. Quick installation: To install, remove the rear wheel. Remove the used brake plate from the front and rear clamps. First, check the piston and the overall condition of the clamp. Tip: If your brakes make a sharp or unusual noise, check the condition of the brake blades and replace them if necessary.